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Renesas IDT71V416VL15PHI8
- Part No.:
- IDT71V416VL15PHI8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 44-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
IDT71V416VL15PHI8.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 44TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:3,120
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Product details
Overview
IDT71V416VL15PHI8 from Integrated Device Technology is a 4-Mbit (256K × 16) high-speed CMOS static RAM with 15 ns access time, single 3.3 V supply operation, LVTTL-compatible I/O, and JEDEC-standard center power/ground pinout for noise reduction. It supports byte-wide and word-wide read/write operations in industrial temperature range (–40°C to +85°C) and is used in real-time embedded control buffers, FPGA configuration memory, and legacy telecom line card data storage.
For engineers reviewing the IDT71V416VL15PHI8 datasheet, IDT71V416VL15PHI8 pinout, IDT71V416VL15PHI8 application, or IDT71V416VL15PHI8 equivalent, key selection criteria include 15 ns tAA/tRC timing, industrial-grade reliability, SOJ-44 package compatibility, and support for independent high/low byte enables in asynchronous memory subsystems.
Technical Context
The IDT71V416VL15PHI8 implements fully static asynchronous circuitry-no clocks or refresh required-and uses dual byte enable (BHE/BLE) logic to gate 8-bit segments of the 16-bit bidirectional data bus independently. Its address decoding covers A0–A17 (18-bit), enabling full 256K-word addressing without external latching.
Operation relies on three critical control signals: Chip Select (CS) for device activation, Output Enable (OE) for output driver control (5 ns tOE), and Write Enable (WE) for write initiation. All inputs meet LVTTL voltage thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V), and outputs drive ±4 mA/±8 mA loads while maintaining VOL ≤ 0.4 V and VOH ≥ 2.4 V at VDD = 3.0 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4,194,304 bits (256K × 16), supporting 16-bit data path without multiplexing |
| Access Time (tAA) | 15 ns max - defines minimum address hold before valid data appears on I/O pins |
| Cycle Time (tRC) | 15 ns max - sets shortest interval between successive read/write cycles |
| Supply Voltage | 3.0 V to 3.6 V - compatible with standard 3.3 V logic rails and tolerant of ±10% regulation drift |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments including base station control modules |
| I/O Interface | LVTTL-compatible - ensures direct connection to FPGA I/O banks and microcontroller data buses without level shifters |
| Standby Current (ISB1) | 10 mA max - enables low-power retention during system sleep modes in battery-backed applications |
Pinout & Package
Package: 44-pin, 400-mil plastic SOJ (SO44-1), JEDEC-standard center VDD/VSS pinout for reduced simultaneous switching noise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A17 | Address Inputs | 18-bit address bus supporting full 256K-word decode; no external address latching required |
| CS | Chip Select | Active-low enable; device enters standby (high-Z I/O) when deasserted |
| OE | Output Enable | Active-low; controls output drivers only - does not affect internal memory state |
| WE | Write Enable | Active-low; initiates write cycle when CS and BHE/BLE are also asserted |
| BHE, BLE | Byte Enable | Independent high/low byte gating - enables 8-bit partial writes without disturbing adjacent bytes |
| I/O0–I/O15 | Bidirectional Data | 16-bit LVTTL I/O bus; direction controlled by WE/OE state and internal bus transceivers |
| VDD | Power Supply | +3.3 V supply pin (pins 12 & 33); center placement minimizes IR drop across package |
| VSS | Ground | Ground reference (pins 11 & 34); paired with VDD per JEDEC noise-reduction layout |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC Center Power/Ground Pinout | Reduces simultaneous switching noise (SSN) by symmetrically distributing VDD/VSS across package center |
| Independent Byte Enables (BHE/BLE) | Enables selective 8-bit writes to upper or lower byte without read-modify-write overhead |
| 5 ns Output Enable Propagation (tOE) | Supports tight timing margins in high-speed burst-mode memory interfaces |
| Full Static Operation | Eliminates need for refresh circuitry or clock distribution - simplifies PCB layout and firmware |
| Industrial Temperature Range | Validated operation from –40°C to +85°C - suitable for uncontrolled enclosure deployments |
Applications
| FPGA Configuration Storage | Industrial PLC Data Buffer |
|---|---|
Use Scenario: Storing configuration bitstreams for Xilinx Spartan or Intel MAX II FPGAs during cold boot. IC Role / Device Role / Timing Role: Asynchronous non-refreshing SRAM holding volatile configuration data until FPGA initialization completes. Use Value: 15 ns tAA enables fast load times; LVTTL compatibility eliminates level-shifting components on FPGA I/O banks. | Use Scenario: Temporary storage of sensor acquisition buffers and motion control command queues in programmable logic controllers. IC Role / Device Role / Timing Role: High-reliability, byte-accessible memory for deterministic real-time data staging between CPU and I/O modules. Use Value: Industrial temperature rating ensures stable operation in factory-floor cabinets; BHE/BLE allows efficient 8-bit register updates without full-word overhead. |
| Legacy Telecom Line Card Memory | DSP Algorithm Co-Processor Cache |
Use Scenario: Packet header buffering and call setup table storage in E1/T1 interface cards using TI C54x DSPs. IC Role / Device Role / Timing Role: Low-latency, pin-compatible replacement for obsolete 256K×16 SRAMs in field-deployed telecom hardware. Use Value: SOJ-44 footprint matches legacy designs; 15 ns timing meets C54x EMIF wait-state requirements without glue logic. | Use Scenario: Off-chip instruction/data cache for TI C67x or ADI SHARC DSPs performing real-time FFT or filtering. IC Role / Device Role / Timing Role: Synchronous-burst-capable SRAM interfaced via external memory controller for predictable latency execution. Use Value: 16-bit bus width matches DSP external memory interface; 10 mA ISB1 supports low-power idle states during algorithm idle cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar static RAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY62167EV30LL-15ZSXI | 16 Mbit (1M × 16), 15 ns, same SOJ-44 package but higher density and 3.0–3.6 V supply | Requires PCB redesign if board space or routing doesn't accommodate larger die; not drop-in for 4 Mbit footprint | Select when future-proofing for larger buffer requirements without changing socket or control logic |
| AS6C4008-15ZIN | 4 Mbit (256K × 16), 15 ns, SOJ-44, but rated only for commercial temp (0°C to +70°C) | Lacks industrial qualification - unsuitable for uncooled enclosures or outdoor telecom use | Choose only for cost-sensitive commercial equipment where ambient temperature stays within 0–70°C |
Compared with IDT71V416VL15PHI8, CY62167EV30LL-15ZSXI offers 4× capacity in same package footprint but requires layout verification, while AS6C4008-15ZIN matches density and speed but sacrifices industrial temperature support - making IDT71V416VL15PHI8 the sole choice for ruggedized 4 Mbit SRAM deployment.
Availability
IDT71V416VL15PHI8 is available at Aetrix Electronics and suitable for industrial PLC data buffering, FPGA configuration storage, and legacy telecom line card memory requiring stable component supply across extended product lifecycles.
Supply support for IDT71V416VL15PHI8 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Integrated Device Technology (IDT), now part of Renesas Electronics, is a fabless semiconductor company specializing in timing, memory interface, RF, and power management ICs for communications and computing infrastructure.
IDT71V416VL15PHI8 belongs to IDT's legacy high-speed CMOS SRAM product line, designed specifically for industrial and telecom applications demanding reliable, low-latency, asynchronous memory with LVTTL compatibility and robust thermal performance.
FAQ
What is the operating temperature range for IDT71V416VL15PHI8?
IDT71V416VL15PHI8 is specified for industrial temperature operation from –40°C to +85°C. This rating is validated per the manufacturer's DC and AC electrical characteristics tables under "Recommended Operating Temperature and Supply Voltage" and applies to all timing parameters including tAA = 15 ns and tRC = 15 ns. The device maintains full functionality across this range without derating.
Does IDT71V416VL15PHI8 require a refresh circuit or clock signal?
No, IDT71V416VL15PHI8 uses fully static CMOS design and requires no refresh cycles or clock input. Its operation is purely asynchronous - address, CS, OE, WE, and byte enables directly control read/write behavior. This eliminates clock distribution complexity and reduces system-level power management overhead compared to DRAM or pseudo-static RAM.
What package type is used for IDT71V416VL15PHI8?
IDT71V416VL15PHI8 uses a 44-pin, 400-mil plastic SOJ (Small Outline J-lead) package, designated SO44-1 in the datasheet. Pin 28 is marked NC* (No Connect, optional VSS tie), and the package features JEDEC-standard center VDD/VSS placement to minimize noise coupling in high-density layouts.
Can IDT71V416VL15PHI8 perform byte-selective writes?
Yes, IDT71V416VL15PHI8 supports independent byte-selective writes using BHE (high byte enable) and BLE (low byte enable) pins. When only BHE is active, I/O8–I/O15 are written; when only BLE is active, I/O0–I/O7 are written. Both must be active for full 16-bit word writes - enabling efficient partial updates without read-modify-write sequences.
What is the maximum output drive capability of IDT71V416VL15PHI8?
IDT71V416VL15PHI8 guarantees VOH ≥ 2.4 V at IOH = –4 mA and VOL ≤ 0.4 V at IOL = 8 mA, with VDD = 3.0 V minimum. These values are specified in the "DC Electrical Characteristics" table and confirm direct interoperability with standard LVTTL logic families without series termination or level translation.
IDT71V416VL15PHI8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 44-TSOP (0.400", 10.16mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Asynchronous
- Memory Size:
- 4Mbit
- Memory Organization:
- 256K x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 15ns
- Access Time:
- 15 ns
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-TSOP II
IDT71V416VL15PHI8 FAQ
1.How can I place an order for IDT71V416VL15PHI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for IDT71V416VL15PHI8 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for IDT71V416VL15PHI8 reliable?
The price and inventory of IDT71V416VL15PHI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDT71V416VL15PHI8 is usually 5 days.
3.What payment methods are accepted for IDT71V416VL15PHI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDT71V416VL15PHI8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDT71V416VL15PHI8?
IDT71V416VL15PHI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDT71V416VL15PHI8 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for IDT71V416VL15PHI8?
For technical support, including IDT71V416VL15PHI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDT71V416VL15PHI8 requirements.
6.How does Aetrix verify that IDT71V416VL15PHI8 is sourced from the original manufacturer or authorized distributors?
All IDT71V416VL15PHI8 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that IDT71V416VL15PHI8 meets industry standards.
7.What is the process for return or replacement of IDT71V416VL15PHI8?
All IDT71V416VL15PHI8 units undergo pre-shipment inspection (PSI). If there is an issue with IDT71V416VL15PHI8, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The IDT71V416VL15PHI8 part is unused and in its original packaging.
Return procedure for IDT71V416VL15PHI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IDT71V416VL15PHI8 Tags
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